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import os
import glob
import csv
import subprocess
# Fonts we want to extract glyphs from
fonts = [font.split('.')[0] for font in os.listdir('../Fonts') if font.endswith('.ttf')]
def getExtractorScript(fontAddr, pixelSize=600):
return f'''
# Credit: https://superuser.com/a/1338994
import fontforge
F = fontforge.open("../{fontAddr}")
for name in F:
filename = name + ".png"
# print name
# F[name].export(filename)
F[name].export(filename, {pixelSize}) # set height to 600 pixels
'''
for font in fonts:
# Set font file address
fontAddr = os.path.join('../Fonts/', font)
# Create font directory if not exists
if not os.path.exists(font): os.mkdir(font)
# Delete all files in the font directory
oldFilesList = [ f for f in os.listdir(font) if f.endswith(".png") ]
for f in oldFilesList:
os.remove(os.path.join(font, f))
# Write a script file to extract fonts for this font
extractorScriptAddr = os.path.join(font, f'extract_{font.replace(" ", "_")}.py')
extractorScript = open(extractorScriptAddr, "w")
extractorScript.write(getExtractorScript(fontAddr))
extractorScript.close()
# Prompt which font is extracting
print(f'\n\nExtracting fonts from {font} from {fontAddr} ...\n\n')
# Extracting Glyphs from font using fontforge python script (ffpython)
ffoutput = subprocess.call(['ffpython', f'extract_{font.replace(" ", "_")}.py'], cwd=font)
# Read name mapping to rename glyph files
# creates an object of {glyphNames: persianLetterName}
nameMap = {}
with open(os.path.join(font, f'../{fontAddr}_namesMap.csv')) as nameMapCsv:
reader = csv.reader(nameMapCsv)
next(reader) # Skipping header
nameMap = {rows[0]:rows[1] for rows in reader}
# Removing unnecessary files
# remove extras like extension and addressing of the files
imageFiles = [os.path.basename(os.path.splitext(name)[0]) for name in glob.glob(os.path.join(font, '*.png'))]
dotNameFiles = [os.path.basename(os.path.splitext(name)[0]) for name in glob.glob(os.path.join(font, '.*'))]
# Mark which files to delete
filesToKeep = [f'{name}.png' for name in nameMap.keys()]
filesToDelete = [f'{name}.png' for name in imageFiles + dotNameFiles if name not in nameMap.keys()]
# Delete files
for _file in filesToDelete:
os.remove(os.path.join(font, _file))
# Rename files according to namesMap.csv
for glyphName in nameMap.keys():
os.rename(os.path.join(font, f'{glyphName}.png'), os.path.join(font, f'{nameMap[glyphName]}.png'))
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